Sorry, but I dismiss any theory that discounts how smart and observational people have been forever. Humans have ALWAYS been smart and observational. "Technology" limited what could be recorded and passed on.
I don't think I have done a good job explaining the argument. It is not that intelligence and empiricism were born in the 13th century, or in the West. Obviously neither of those things has a birth, they are as old as humanity.
The argument is that Aristotelianism, which dominated European
and Anatolian
and Middle Eastern
and North African intellectual culture from 300 BC through 1300 AD, had a fatal flaw which had to be overcome before science could progress. It's ironic because Aristotle himself, a physician and naturalist, would almost certainly have wholly rejected the slavish reification of it. That flaw was the conceit that everything in the universe has four causes: efficient, formal, material, and final. The first three map, roughly, to the reality of the natural world (etiology, morphology, chemistry), and they are quite useful.
The final cause is a superstition held over from the personification of nature of primitive cultures. It posited there was a thing that dictated natural existence
intentionally, the way a carpenter dictated the existence of a chair. So, an acorn is the final cause of a tree: its purpose is to create more trees. Aristotelianism dictated every aspect of nature had a purpose, and therefore that you could reason your way to the purpose. The primary work of the natural philosopher was in the mind -- to figure out the reasonable chain that led from creator to created.
12th and 13th century philosophers reinforced the notion, ironically in the service of harmonizing the divine and the natural. Aquinas believed that god is free but that freedom is defined by necessity. God's freedom is not arbitrary or contingent, it follows from the nature of god and the world. Everything happens for a reason. Aquinas did not suggest this limited god, but merely said that necessity as perceived by limited beings like humans
was god's will. And again, that leads you back into the Aristotelian box. No need to touch grass to understand the existence of grass. One only needs to follow the chain: god created animals, some animals graze on grass, ergo grass exists
to feed those animals.
The authorities in Paris perceived these notions as a threat since they appeared to bind god, so they were declared anathema. Natural philosophers could take a hint -- they didn't wind to wind up on the business end of a stake -- so they branched out their theorizing in other directions from the strict Aristotelianism of the 13th century and began to concoct all sorts of interesting ways of viewing the world as the result of god doing whatever he wanted when he wanted. This opened up the possibility of, literally,
possibility: other possible ways of being that just didn't happen to come up on the Magic 8 Ball. And that perhaps did not invent but did strongly support a strand of human inquiry which otherwise would have been suppressed due to dogma.
It's a great irony that an attempt to roll back metaphysics to an authoritative formula resulted in the intellectual movement that eventually destroyed not just the formula but the authority, and created modernity.
Now you may well ask if India and China had anything like a similar development. I'd love to know. I know very little about China and all I know of India is they were doing the mathematics it took Europeans until 1900 to understand in, literally, the 11th century.